Hey guys, shot this at the new Belconnen skatepark using my new yn-468 flash:
the flash wont work outside wireless by using the on camera flash as master and the yn 468 as a slave. why is this?
Like Scott said, when using the flash as a slave, the flash does not fire, is this because there is nothing for the radio signals to to reflect off to tell the flash? If so these are some receivers/ transmitters, that i have been looking at as a cheep alternative to Pocketwizards or Alienbees (
http://www.ebay.com.au/itm/YongNuo-...60715893080?pt=AU_Flashes&hash=item3cb3e0d158) would these be of any benefit/ make a difference or am i just better off saving and getting some Alienbees?
Thanks in advance.
CyberSync*
Some things need to be cleared up here I think.
The 'wireless' system you described is triggered
optically (ie. the slave flash is triggered when it detects the light burst from the master flash - also known as
pre-flash) This is very different to the
radio-based systems used by PocketWizard, Elinchrom Skyport and Alienbee CyberSync which consist of a trigger (mounted on the camera) and a receiver (attached to the slave) and talk to each other on a preset radio frequency.
My guess is that jackaroo had either used incorrect set up the optical flash/slave interface (shutter speed too high for the flash to respond to the pre flash) or was simply not in range/correct position for the slave to register the camera's preflash. If the optical system employed by YongNuo is anything like Nikon, there is going to be some form of sensor that needs to be facing the camera flash
at a range it is able to detect.
Optically-triggered flash slaves are great as they don't require any further external hardware and are often full TTL compatible. However, they will only function at close range (ie. perfect for studio work where everything is in close proximity to one and other) - probably not the most appropriate for shots like that above. For field work like this, you're best bet is to opt for radio-based triggers/receivers.
Before you rush out and spend a packet on high-end radio triggers, I'd be most considering the cheaper alternatives like the Cactus series of triggers/receivers or the YongNuo ones you linked. A trigger/reciever combo will set you back ~$60 which is a fraction of the cost of just a pocket wizard trigger meaning you have more money to invest in
a) more flashes or
b) better flashes. Like many other snobs on here, I have a set of Cactus triggers in my backpack - may not have the wank factor of the pocket wizards but function all the same. In short, buy a set of ''poverty wizards' and go play!
One thing to be mindful of is your flash sync speed with can be a limiting factor if using slaves in broad daylight. In a nutshell, a radio-triggered set up will only permit you to shoot up to ~1/200th sec as it has no compatibility for high speed sync. This is where higher-end products will excel but one also must be mindful that in HSS mode, flash dynamics (specifically the way in which flashes freeze motion) changes. In short, shoot in the evening
With regards to your image, as I outlined above, in such bright light, flashes may not be of much help to you. You'd be better to experiment with natural lighting techniques to illuminate/expose the rider (which you've done anyways!)
Hope that helps man